80% of adults who were raised Protestant are still Protestant.
Amen!
And many of the remaining "converts" to RCism did so to keep peace in their marriage to a Roman Catholic. I attended just such a wedding of a friend's son a few months ago.
Neither of the newlyweds attend any church now.
Speaking of marriage, of the lack thereof, there is less and less in this non-committal world in which the love many grows cold as iniquity abounds: http://pewsocialtrends.org/files/2010/11/pew-social-trends-2010-families.pdf